Features of Oligopoly
1. Few Large Firms- There exists few but large and dominating firms. These firms account for majority of market supply, thereby control the market price and quantity of the output.
2. Mutual Dependence- There exists a very high degree of mutual interdependence between the firms in an oligopoly market. The price and the quality decisions of a particular firm are dependent on the price and the quality decisions of the rival (other) firms. Hence, a firm must take into consideration the probable rival reactions, while formulating its own price and output decisions.
3. Restricted Entry- As there exists a cut-throat competition among the firms, so it is very difficult for any new firm to enter into the industry. Moreover, as the existing firms are the only giants in the market, so it narrows the scope for a new entrant to enter the industry due to high cost associated with the entry.
4. Product- The products of any two oligopolistic firms can either be homogeneous such as in a steel industry or can be differentiated such as in an automobile industry.
Also, these features are extensively covered in our study material. You can find them in Microeconomics-Non Competitive Market (Lesson 3) of our study material.